[INFO] cloning repository https://github.com/Dzeinuda/rust_hangman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dzeinuda/rust_hangman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzeinuda%2Frust_hangman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzeinuda%2Frust_hangman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c20f9fde122de34166692b1499a532edabe8be86
[INFO] checking Dzeinuda/rust_hangman against try#377afada703be70d3fdff9164a481570a3cba7fe for pr-113240
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzeinuda%2Frust_hangman" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dzeinuda/rust_hangman on toolchain 377afada703be70d3fdff9164a481570a3cba7fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dzeinuda/rust_hangman
[INFO] finished tweaking git repo https://github.com/Dzeinuda/rust_hangman
[INFO] tweaked toml for git repo https://github.com/Dzeinuda/rust_hangman written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Dzeinuda/rust_hangman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce660d2fe903356e7560d0e484eb02ed0517f85715103516e01627fa1ed0f269
[INFO] running `Command { std: "docker" "start" "-a" "ce660d2fe903356e7560d0e484eb02ed0517f85715103516e01627fa1ed0f269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce660d2fe903356e7560d0e484eb02ed0517f85715103516e01627fa1ed0f269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce660d2fe903356e7560d0e484eb02ed0517f85715103516e01627fa1ed0f269", kill_on_drop: false }`
[INFO] [stdout] ce660d2fe903356e7560d0e484eb02ed0517f85715103516e01627fa1ed0f269
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ff8e71c44bda05d16eee42bd8cf21231a7e00e9a9c78f747a7efc75da332b4e
[INFO] running `Command { std: "docker" "start" "-a" "5ff8e71c44bda05d16eee42bd8cf21231a7e00e9a9c78f747a7efc75da332b4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling openssl-sys v0.9.77
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5ff8e71c44bda05d16eee42bd8cf21231a7e00e9a9c78f747a7efc75da332b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ff8e71c44bda05d16eee42bd8cf21231a7e00e9a9c78f747a7efc75da332b4e", kill_on_drop: false }`
[INFO] [stdout] 5ff8e71c44bda05d16eee42bd8cf21231a7e00e9a9c78f747a7efc75da332b4e